diff --git a/usr.bin/rup/rup.c b/usr.bin/rup/rup.c
index 26037a61bfe..239b313ce81 100644
--- a/usr.bin/rup/rup.c
+++ b/usr.bin/rup/rup.c
@@ -101,6 +101,7 @@ rstat_reply(caddr_t replyp, struct sockaddr_in *raddrp)
 	struct hostent *hp;
 	char *host;
 	statstime *host_stat = (statstime *)replyp;
+	time_t tmp_time_t;
 
 	if (search_host(raddrp->sin_addr))
 		return(0);
@@ -118,13 +119,26 @@ rstat_reply(caddr_t replyp, struct sockaddr_in *raddrp)
 
 	printf("%-*s\t", HOST_WIDTH, host);
 
-	tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
-	host_time = *tmp_time;
+	if (sizeof(time_t) == sizeof(host_stat->curtime.tv_sec)) {
+		tmp_time = localtime((time_t *)&host_stat->curtime.tv_sec);
+		host_time = *tmp_time;
 
-	host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
+		host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
 
-	tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
-	host_uptime = *tmp_time;
+		tmp_time = gmtime((time_t *)&host_stat->curtime.tv_sec);
+		host_uptime = *tmp_time;
+	}
+	else {			/* non-32-bit time_t */
+		tmp_time_t = host_stat->curtime.tv_sec;
+		tmp_time = localtime(&tmp_time_t);
+		host_time = *tmp_time;
+
+		host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec;
+
+		tmp_time_t = host_stat->curtime.tv_sec;
+		tmp_time = gmtime(&tmp_time_t);
+		host_uptime = *tmp_time;
+	}
 
 	#define updays (host_stat->curtime.tv_sec  / 86400)
 	if (host_uptime.tm_yday != 0)